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Analog Devices Inc./Maxim Integrated MAX306EUI+
- Part No.:
- MAX306EUI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX306EUI+.pdf
- Description:
- IC MUX 16:1 100OHM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
MAX306EUI+ from Maxim Integrated is a precision 1-of-16 single-ended CMOS analog multiplexer with ≤100Ω on-resistance, <5Ω channel-to-channel on-resistance matching, and <10pC charge injection-designed for high-fidelity signal routing in test equipment and military radios operating across -40°C to +85°C.
For engineers reviewing the MAX306EUI+ datasheet, MAX306EUI+ pinout, MAX306EUI+ application, or MAX306EUI+ equivalent, key selection criteria include guaranteed flat on-resistance (≤7Ω max over ±10V signal range), rail-to-rail analog signal handling (±15V dual supply or +5V to +30V single supply), TTL/CMOS-compatible logic inputs, and ESD protection >2000V.
Technical Context
The MAX306EUI+ implements a monolithic CMOS decoder-multiplexer architecture with four address lines (A0–A3), active-high enable (EN), and a single bidirectional COM output switching among 16 NO inputs. Its silicon-gate process ensures low leakage (<2.5nA NO off-leakage at +85°C) and fast transition time (<250ns typical).
All 16 channels share identical switch characteristics: matched on-resistance, flat RON vs. VCOM, and symmetric charge injection-enabling precise sample-and-hold and multiplexed data acquisition without channel-dependent gain or offset error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply) or 0–12V (single +12V supply): supports rail-to-rail input/output swing without clipping. |
| On-Resistance (RON) | ≤100Ω max at +25°C, ≤125Ω over full temperature range: minimizes voltage drop and gain error in precision sensor/metering paths. |
| On-Resistance Matching | <5Ω max between any two channels: enables accurate ratiometric measurements and channel calibration without per-channel correction. |
| Charge Injection | <10pC max: reduces sampling error in high-impedance sample-and-hold circuits and ADC front-ends. |
| NO Off-Leakage Current | <2.5nA at +85°C: prevents signal corruption in battery-operated or high-Z sensor interfaces over extended temperature range. |
| Enable Turn-On Time | <400ns max over -40°C to +85°C: supports high-speed multiplexed data acquisition up to ~1MHz effective channel rate. |
| ESD Protection | >2000V HBM: enhances robustness in manufacturing, field service, and ruggedized communications systems. |
Pinout & Package
MAX306EUI+ is housed in a 28-pin TSSOP (Thin Shrink Small Outline Package) with 0.65mm pitch, JEDEC MO-153 compliant, footprint code U28+2, and RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply rail: accepts +5V to +30V (single) or up to +20V (bipolar); must be powered before V− for safe sequencing. |
| 2, 3, 13 | N.C. | No internal connection: must remain unconnected; not usable as heatsink or ground tie. |
| 4–11 | NO16–NO9 | Input/output analog channels: bidirectional, fully specified for ±15V operation and low crosstalk (-92dB). |
| 12 | GND | Digital ground reference: separate from analog return but tied to system ground; critical for noise immunity. |
| 14–17 | A3–A0 | Binary address inputs: select one of 16 channels; TTL/CMOS compatible (0.8V/2.4V thresholds). |
| 18 | EN | Active-high enable: disables all switches when low; allows power-down mode with <1µA standby current. |
| 19–26 | NO1–NO8 | Input/output analog channels: identical electrical specs to NO9–NO16; full 16-channel symmetry confirmed. |
| 27 | V− | Negative supply rail: accepts -4.5V to -20V (bipolar) or 0V (single supply); clamped diodes protect against overvoltage. |
| 28 | COM | Common bidirectional terminal: connects to selected NO channel; supports rail-to-rail signal routing with low RON flatness. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed on-resistance match | <5Ω max between any two channels ensures consistent gain scaling across all 16 paths in multi-sensor systems. |
| Rail-to-rail signal handling | Operates with analog signals from V− to V+ (±15V or 0–12V), eliminating level-shifting in wide-dynamic-range instrumentation. |
| Plug-in upgrade for DG406/DG506A | P2P compatible with industry-standard 28-pin packages (PDIP, SO, TSSOP), enabling drop-in replacement without PCB redesign. |
| Low power consumption | <1.25mW typical at +25°C: extends battery life in portable test gear and handheld military radios. |
| TTL/CMOS logic compatibility | Accepts standard 0.8V/2.4V logic thresholds with <1µA input current-reduces loading on microcontroller GPIOs and FPGA I/O banks. |
Applications
| Test Equipment | Military Radios |
|---|---|
|
Use Scenario: Automated test systems route sensor outputs, calibration references, and DUT signals through a single multiplexer bank for shared ADC resources. IC Role / Device Role / Timing Role: Precision 16:1 analog switch providing low-error, low-crosstalk signal selection with deterministic timing (tTRANS < 250ns). Use Value: Eliminates need for multiple discrete switches or relays-reducing board area, cost, and thermal drift while maintaining measurement repeatability across channels. |
Use Scenario: Secure voice/data transceivers require reliable analog signal routing between antenna duplexers, audio codecs, and encryption modules under extreme environmental stress. IC Role / Device Role / Timing Role: High-reliability analog mux handling ±15V RF coupling and audio paths with guaranteed -40°C to +85°C operation and >2000V ESD tolerance. Use Value: Enables compact, ruggedized radio designs meeting MIL-STD-810G shock/vibe and MIL-STD-461F EMI requirements without derating or external protection. |
| Sample-and-Hold Circuits | Battery-Operated Systems |
|
Use Scenario: High-resolution data loggers acquire synchronized samples from multiple thermocouples or strain gauges into a single S/H amplifier before digitization. IC Role / Device Role / Timing Role: Low-charge-injection (≤10pC), low-leakage (<2.5nA) analog switch minimizing hold-step error and droop during acquisition intervals. Use Value: Achieves ≥16-bit effective resolution without per-channel calibration-critical for portable environmental monitoring and structural health sensing. |
Use Scenario: Portable medical devices (e.g., handheld ECG monitors) multiplex electrode leads while maximizing battery runtime and minimizing self-heating. IC Role / Device Role / Timing Role: Ultra-low-power analog mux consuming <1.25mW and supporting single +5V supply-eliminating need for negative rails or charge pumps. Use Value: Extends operational life beyond 100 hours on coin-cell batteries while maintaining clinical-grade signal fidelity and low thermal noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX306EWI+ | Same die, identical specs, but in 28-pin Wide SO package (W28+6); 1.27mm pitch vs. TSSOP's 0.65mm. | Preferred for manual assembly, prototyping, or legacy SO footprints; slightly larger board area and lower thermal dissipation (1000mW vs. 1025mW). | Select MAX306EWI+ when board layout uses SO-28 land pattern or requires easier rework; no change to schematic or firmware. |
| ADG406BRUZ | 16-channel mux from Analog Devices; RON = 75Ω typ, but only guaranteed match ≤10Ω; no flat-RON spec; charge injection = 25pC. | Suitable for general-purpose industrial control where precision matching and low charge injection are secondary to cost or availability. | Choose ADG406BRUZ only if MAX306EUI+ supply constraints or lead-time prevent use-requires validation of channel matching and S/H performance in final design. |
Compared with MAX306EWI+, the MAX306EUI+ offers identical electrical performance in a space-optimized TSSOP package ideal for high-density portable systems; versus ADG406BRUZ, it delivers superior channel matching, flatter on-resistance, and lower charge injection-justifying its use in metrology-grade and military-critical signal paths.
Availability
MAX306EUI+ is available at Aetrix Electronics and suitable for test equipment, military radios, sample-and-hold circuits, battery-operated systems, and heads-up displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX306EUI+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX306EUI+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for applications demanding low on-resistance mismatch, minimal charge injection, and guaranteed performance across -40°C to +85°C-targeting test instrumentation, defense electronics, and portable medical devices.
FAQ
What is the maximum analog signal voltage range supported by the MAX306EUI+?
The MAX306EUI+ supports an analog signal range of ±15V when operated from dual supplies (V+ = +15V, V− = −15V), and 0V to +12V when operated from a single +12V supply. The device guarantees rail-to-rail signal handling within these limits, with on-resistance flatness ≤7Ω over the full specified range-ensuring consistent performance regardless of signal amplitude.
Does the MAX306EUI+ require external pull-up resistors on its address or enable pins?
No, the MAX306EUI+ does not require external pull-up resistors. Its CMOS logic inputs (A0–A3 and EN) exhibit low input current (<±1.0µA) and are fully TTL/CMOS-compatible with defined thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V). Direct connection to microcontroller GPIOs or FPGA outputs is supported without additional biasing components.
Can the MAX306EUI+ be used with unbalanced supplies such as +24V and −5V?
Yes, the MAX306EUI+ supports unbalanced supplies-the absolute maximum rating specifies V+ − V− ≤ +44V, and operation is verified across ±4.5V to ±20V bipolar and +5V to +30V single supplies. Using +24V and −5V is valid, yielding a 29V differential that remains within specification and maintains full analog signal range from −5V to +24V.
How does the MAX306EUI+ compare to the industry-standard DG406 in terms of pin compatibility?
The MAX306EUI+ is a plug-in upgrade for the DG406, sharing identical pinout, function mapping, and 28-pin TSSOP footprint (U28+2). Electrical improvements-including lower on-resistance (≤100Ω vs. ≤120Ω), tighter matching (<5Ω vs. <10Ω), and lower charge injection (<10pC vs. <25pC)-are achieved without altering PCB layout or firmware logic.
What is the guaranteed maximum on-resistance flatness for the MAX306EUI+ over temperature?
The MAX306EUI+ guarantees on-resistance flatness of ≤10Ω over the full −40°C to +85°C operating range, defined as the difference between maximum and minimum RON measured at the extremes of the specified analog signal range (e.g., ±10V). This ensures minimal gain variation across signal amplitude and temperature-critical for precision measurement systems.
MAX306EUI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 16:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 130pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
MAX306EUI+ FAQ
1.How can I place an order for MAX306EUI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306EUI+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX306EUI+ reliable?
The price and inventory of MAX306EUI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306EUI+ is usually 5 days.
3.What payment methods are accepted for MAX306EUI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306EUI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306EUI+?
MAX306EUI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306EUI+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX306EUI+?
For technical support, including MAX306EUI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306EUI+ requirements.
6.How does Aetrix verify that MAX306EUI+ is sourced from the original manufacturer or authorized distributors?
All MAX306EUI+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX306EUI+ meets industry standards.
7.What is the process for return or replacement of MAX306EUI+?
All MAX306EUI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX306EUI+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX306EUI+ part is unused and in its original packaging.
Return procedure for MAX306EUI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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